In this project measurements in the low voltage grid in Schleswig-Holstein are executed. These measurements involve derivation of voltage quality in terms of pollution of harmonic voltage and grid impedance measurements. There will also be measurements for active filter functionality of grid-connected converters of renewables. [read more]The project task of the Chair of Power Electronics is the development of a special mobile measurement system that will be used for AF measurements and grid impedance estimation. The project will benefit from the cooperation with FH Kiel and the partners from industry. The main findings of the project will be useful for guidelines and codes for the connections of converters for renewable to the low voltage grid.